Dear Mr. Nagaoka

IPC-MF-150F (Metal Foil for Printed Wiring Applications) paragraph 3.5.6 
states:

The following requirements for metal foik surface finish shall apply to 
the cathode side of the electrodeposited foil (if untreated) and to both 
sides of wrought foil (if untreated).

The metal foil surface finish shall have a maximum arithmetal average 
value of 0.43 micrometers [17 microinches]  as determined by paragraph 
4.5.9 (Contacting Stylus method)

This requirement is only at the foil level. It has not been inserted into 
IPC's laminate specifications IPC-L-108 and IPC-L-115.  These documents 
have pit/dent and scratch requirements only.

I hope this helps.
Regards
***************************************************
David W. Bergman, Director of Technical Programs
IPC
7380 N. Lincoln Avenue
Lincolnwood, IL  60646
708-677-2850 x340 Phone
708-677-9570 Fax
email  [log in to unmask]
***************************************************



On Tue, 9 May 1995, hidenori nagaoka wrote:

>  Question1
>  Please let us know whether specification on Surface Waviness or Surface 
> roughness for CCL is decided or not ?
> 
> Question2
>  If specification in Question 1 is decided , please let us know it.
> 
> Hidenori Nagaoka
> [log in to unmask]
> 
>